Heater fan



FIG. 1 is a front view of a heater fan according to the invention;

FIG. 2 is a left side, front perspective view of the heater fan of FIG. 1;

FIG. 3 is a right side, front perspective view of the heater fan of FIG. 1;

FIG. 4 is a side view of the heater fan of FIG. 1;

FIG. 5 is a rear perspective view of the heater fan of FIG. 1; and,

FIG. 6 is a rear view of the heater fan of FIG. 1.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a heater fan, as shown and described. 